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High-Risk International Clones of Carbapenem-Nonsusceptible Pseudomonas aeruginosa Endemic to Indonesian Intensive Care Units: Impact of a Multifaceted Infection Control Intervention Analyzed at the Genomic Level.

Pelegrin AC, Saharman YR, Griffon A, Palmieri M, Mirande C, Karuniawati A, Sedono R, Aditianingsih D, Goessens WHF, van Belkum A, Verbrugh HA, Klaassen CHW, Severin JA.

MBio. 2019 Nov 12;10(6). pii: e02384-19. doi: 10.1128/mBio.02384-19.


An outbreak of ST307 extended-spectrum beta-lactamase (ESBL)-producing Klebsiella pneumoniae in a rehabilitation center: An unusual source and route of transmission.

Boonstra MB, Spijkerman DCM, Voor In 't Holt AF, van der Laan RJ, Bode LGM, van Vianen W, Klaassen CHW, Vos MC, Severin JA.

Infect Control Hosp Epidemiol. 2019 Nov 5:1-6. doi: 10.1017/ice.2019.304. [Epub ahead of print]


Cefpirome Treatment Results in Limited Selection of Stable Derepressed Enterobacter cloacae Mutants in the Intestinal Flora of Rats Treated for an Experimental Klebsiella pneumoniae Pulmonary Infection.

Gautam V, Mouton JW, Ten Kate MT, Bakker-Woudenberg IAJM, van Burgh S, Strepis N, Klaassen CHW, Goessens W.

Microb Drug Resist. 2019 Oct 29. doi: 10.1089/mdr.2018.0473. [Epub ahead of print]


Epidemiology and characterisation of carbapenem-non-susceptible Pseudomonas aeruginosa in a large intensive care unit in Jakarta, Indonesia.

Saharman YR, Pelegrin AC, Karuniawati A, Sedono R, Aditianingsih D, Goessens WHF, Klaassen CHW, van Belkum A, Mirande C, Verbrugh HA, Severin JA.

Int J Antimicrob Agents. 2019 Nov;54(5):655-660. doi: 10.1016/j.ijantimicag.2019.08.003. Epub 2019 Aug 7.


Double Infection With Leishmania tropica and L. major in an HIV Patient Controlled With High Doses of Amphotericin B.

Al Balushi A, Khamis F, Klaassen CHW, Gangneux JP, Van Hellemond JJ, Petersen E.

Open Forum Infect Dis. 2018 Dec 7;5(12):ofy323. doi: 10.1093/ofid/ofy323. eCollection 2018 Dec.


Unexpected mechanisms of resistance in Dutch Pseudomonas aeruginosa isolates collected during 14 years of surveillance.

Croughs PD, Klaassen CHW, van Rosmalen J, Maghdid DM, Boers SA, Hays JP, Goessens WHF; Dutch Antibiotic Resistance Surveillance Group.

Int J Antimicrob Agents. 2018 Sep;52(3):407-410. doi: 10.1016/j.ijantimicag.2018.05.009. Epub 2018 May 15.


Endemic carbapenem-nonsusceptible Acinetobacter baumannii-calcoaceticus complex in intensive care units of the national referral hospital in Jakarta, Indonesia.

Saharman YR, Karuniawati A, Sedono R, Aditianingsih D, Sudarmono P, Goessens WHF, Klaassen CHW, Verbrugh HA, Severin JA.

Antimicrob Resist Infect Control. 2018 Jan 12;7:5. doi: 10.1186/s13756-017-0296-7. eCollection 2018.


Detection of azole-susceptible and azole-resistant Aspergillus coinfection by cyp51A PCR amplicon melting curve analysis.

Schauwvlieghe AFAD, Vonk AG, Buddingh EP, Hoek RAS, Dalm VA, Klaassen CHW, Rijnders BJA.

J Antimicrob Chemother. 2017 Nov 1;72(11):3047-3050. doi: 10.1093/jac/dkx262.


Identification and nomenclature of the genus Penicillium.

Visagie CM, Houbraken J, Frisvad JC, Hong SB, Klaassen CH, Perrone G, Seifert KA, Varga J, Yaguchi T, Samson RA.

Stud Mycol. 2014 Jun;78:343-71. doi: 10.1016/j.simyco.2014.09.001.


Phylogeny, identification and nomenclature of the genus Aspergillus.

Samson RA, Visagie CM, Houbraken J, Hong SB, Hubka V, Klaassen CH, Perrone G, Seifert KA, Susca A, Tanney JB, Varga J, Kocsubé S, Szigeti G, Yaguchi T, Frisvad JC.

Stud Mycol. 2014 Jun;78:141-73. doi: 10.1016/j.simyco.2014.07.004.


Molecular identification and susceptibility pattern of clinical Nocardia species: Emergence of Nocardia crassostreae as an agent of invasive nocardiosis.

Taj-Aldeen SJ, Deshmukh A, Doiphode S, Wahab AA, Allangawi M, Almuzrkchi A, Klaassen CH, Meis JF.

Can J Infect Dis Med Microbiol. 2013 Summer;24(2):e33-8.


Geographically structured populations of Cryptococcus neoformans Variety grubii in Asia correlate with HIV status and show a clonal population structure.

Khayhan K, Hagen F, Pan W, Simwami S, Fisher MC, Wahyuningsih R, Chakrabarti A, Chowdhary A, Ikeda R, Taj-Aldeen SJ, Khan Z, Ip M, Imran D, Sjam R, Sriburee P, Liao W, Chaicumpar K, Vuddhakul V, Meyer W, Trilles L, van Iersel LJ, Meis JF, Klaassen CH, Boekhout T.

PLoS One. 2013 Sep 3;8(9):e72222. doi: 10.1371/journal.pone.0072222. eCollection 2013.


Genotypic diversity of Pseudomonas aeruginosa in cystic fibrosis siblings in Qatar using AFLP fingerprinting.

Abdul Wahab A, Taj-Aldeen SJ, Hagen F, Diophode S, Saadoon A, Meis JF, Klaassen CH.

Eur J Clin Microbiol Infect Dis. 2014 Feb;33(2):265-71. doi: 10.1007/s10096-013-1954-1. Epub 2013 Sep 1.


Ancient dispersal of the human fungal pathogen Cryptococcus gattii from the Amazon rainforest.

Hagen F, Ceresini PC, Polacheck I, Ma H, van Nieuwerburgh F, Gabaldón T, Kagan S, Pursall ER, Hoogveld HL, van Iersel LJ, Klau GW, Kelk SM, Stougie L, Bartlett KH, Voelz K, Pryszcz LP, Castañeda E, Lazera M, Meyer W, Deforce D, Meis JF, May RC, Klaassen CH, Boekhout T.

PLoS One. 2013 Aug 7;8(8):e71148. doi: 10.1371/journal.pone.0071148. Print 2013.


Different colonization patterns of Aspergillus terreus in patients with cystic fibrosis.

Rougeron A, Giraud S, Razafimandimby B, Meis JF, Bouchara JP, Klaassen CH.

Clin Microbiol Infect. 2014 Apr;20(4):327-33. doi: 10.1111/1469-0691.12323. Epub 2013 Aug 9.


Search for possible additional reservoirs for human Q fever, The Netherlands.

Roest HI, van Solt CB, Tilburg JJ, Klaassen CH, Hovius EK, Roest FT, Vellema P, van den Brom R, van Zijderveld FG.

Emerg Infect Dis. 2013 May;19(5):834-5. doi: 10.3201/eid1905.121489. No abstract available.


Veronaea botryosa: molecular identification with amplified fragment length polymorphism (AFLP) and in vitro antifungal susceptibility.

Badali H, Yazdanparast SA, Bonifaz A, Mousavi B, de Hoog GS, Klaassen CH, Meis JF.

Mycopathologia. 2013 Jun;175(5-6):505-13. doi: 10.1007/s11046-013-9631-6. Epub 2013 Mar 6.


First environmental isolation of Cryptococcus gattii, genotype AFLP5, from India and a global review.

Chowdhary A, Prakash A, Randhawa HS, Kathuria S, Hagen F, Klaassen CH, Meis JF.

Mycoses. 2013 May;56(3):222-8. doi: 10.1111/myc.12039. Epub 2013 Jan 22. Review.


Identification and typing of isolates of Cyphellophora and relatives by use of amplified fragment length polymorphism and rolling circle amplification.

Feng P, Klaassen CH, Meis JF, Najafzadeh MJ, Gerrits Van Den Ende AH, Xi L, de Hoog GS.

J Clin Microbiol. 2013 Mar;51(3):931-7. doi: 10.1128/JCM.02898-12. Epub 2013 Jan 9.


Clonal expansion and emergence of environmental multiple-triazole-resistant Aspergillus fumigatus strains carrying the TR₃₄/L98H mutations in the cyp51A gene in India.

Chowdhary A, Kathuria S, Xu J, Sharma C, Sundar G, Singh PK, Gaur SN, Hagen F, Klaassen CH, Meis JF.

PLoS One. 2012;7(12):e52871. doi: 10.1371/journal.pone.0052871. Epub 2012 Dec 28.


Genotyping of Coxiella burnetii from domestic ruminants in northern Spain.

Astobiza I, Tilburg JJ, Piñero A, Hurtado A, García-Pérez AL, Nabuurs-Franssen MH, Klaassen CH.

BMC Vet Res. 2012 Dec 10;8:241. doi: 10.1186/1746-6148-8-241.


Genotypic diversity of clinical Coxiella burnetii isolates from Portugal based on MST and MLVA typing.

Santos AS, Tilburg JJ, Botelho A, Barahona MJ, Núncio MS, Nabuurs-Franssen MH, Klaassen CH.

Int J Med Microbiol. 2012 Nov;302(6):253-6. doi: 10.1016/j.ijmm.2012.08.003. Epub 2012 Oct 4.


Autochthonous and dormant Cryptococcus gattii infections in Europe.

Hagen F, Colom MF, Swinne D, Tintelnot K, Iatta R, Montagna MT, Torres-Rodriguez JM, Cogliati M, Velegraki A, Burggraaf A, Kamermans A, Sweere JM, Meis JF, Klaassen CH, Boekhout T.

Emerg Infect Dis. 2012 Oct;18(10):1618-24. doi: 10.3201/eid1810.120068.


USA300 Methicillin-resistant Staphylococcus aureus in Cuba.

Hopman J, Peraza GT, Espinosa F, Klaassen CH, Velázquez DM, Meis JF, Voss A.

Antimicrob Resist Infect Control. 2012 Jan 26;1(1):2. doi: 10.1186/2047-2994-1-2.


In vitro activities of nine antifungal drugs against 81 Phialophora and Cyphellophora isolates.

Feng P, Najafzadeh MJ, Sun J, Ahmed S, Xi L, de Hoog GS, Lai W, Lu C, Klaassen CH, Meis JF.

Antimicrob Agents Chemother. 2012 Nov;56(11):6044-7. doi: 10.1128/AAC.01112-12. Epub 2012 Sep 4.


Microsatellite genotyping clarified conspicuous accumulation of Candida parapsilosis at a cardiothoracic surgery intensive care unit.

Diab-Elschahawi M, Forstner C, Hagen F, Meis JF, Lassnig AM, Presterl E, Klaassen CH.

J Clin Microbiol. 2012 Nov;50(11):3422-6. doi: 10.1128/JCM.01179-12. Epub 2012 Aug 8.


Molecular epidemiology of Aspergillus fumigatus isolates harboring the TR34/L98H azole resistance mechanism.

Camps SM, Rijs AJ, Klaassen CH, Meis JF, O'Gorman CM, Dyer PS, Melchers WJ, Verweij PE.

J Clin Microbiol. 2012 Aug;50(8):2674-80. doi: 10.1128/JCM.00335-12. Epub 2012 Jun 6.


Schizophyllum commune as an emerging fungal pathogen: a review and report of two cases.

Chowdhary A, Randhawa HS, Gaur SN, Agarwal K, Kathuria S, Roy P, Klaassen CH, Meis JF.

Mycoses. 2013 Jan;56(1):1-10. doi: 10.1111/j.1439-0507.2012.02190.x. Epub 2012 Apr 23. Review.


Epidemic genotype of Coxiella burnetii among goats, sheep, and humans in the Netherlands.

Tilburg JJ, Roest HJ, Buffet S, Nabuurs-Franssen MH, Horrevorts AM, Raoult D, Klaassen CH.

Emerg Infect Dis. 2012 May;18(5):887-9. doi: 10.3201/eid1805.111907. No abstract available.


Genotyping reveals the presence of a predominant genotype of Coxiella burnetii in consumer milk products.

Tilburg JJ, Roest HJ, Nabuurs-Franssen MH, Horrevorts AM, Klaassen CH.

J Clin Microbiol. 2012 Jun;50(6):2156-8. doi: 10.1128/JCM.06831-11. Epub 2012 Apr 11.


Extensive genetic diversity within the Dutch clinical Cryptococcus neoformans population.

Hagen F, Illnait-Zaragozí MT, Meis JF, Chew WH, Curfs-Breuker I, Mouton JW, Hoepelman AI, Spanjaard L, Verweij PE, Kampinga GA, Kuijper EJ, Boekhout T, Klaassen CH.

J Clin Microbiol. 2012 Jun;50(6):1918-26. doi: 10.1128/JCM.06750-11. Epub 2012 Mar 21.


Black yeast-like fungi associated with Lethargic Crab Disease (LCD) in the mangrove-land crab, Ucides cordatus (Ocypodidae).

Vicente VA, Orélis-Ribeiro R, Najafzadeh MJ, Sun J, Guerra RS, Miesch S, Ostrensky A, Meis JF, Klaassen CH, de Hoog GS, Boeger WA.

Vet Microbiol. 2012 Jul 6;158(1-2):109-22. doi: 10.1016/j.vetmic.2012.01.031. Epub 2012 Feb 9.


Resistance of Asian Cryptococcus neoformans serotype A is confined to few microsatellite genotypes.

Pan W, Khayhan K, Hagen F, Wahyuningsih R, Chakrabarti A, Chowdhary A, Ikeda R, Taj-Aldeen SJ, Khan Z, Imran D, Sjam R, Sriburee P, Liao W, Chaicumpar K, Ingviya N, Mouton JW, Curfs-Breuker I, Boekhout T, Meis JF, Klaassen CH.

PLoS One. 2012;7(3):e32868. doi: 10.1371/journal.pone.0032868. Epub 2012 Mar 13.


Triazole fungicides can induce cross-resistance to medical triazoles in Aspergillus fumigatus.

Snelders E, Camps SM, Karawajczyk A, Schaftenaar G, Kema GH, van der Lee HA, Klaassen CH, Melchers WJ, Verweij PE.

PLoS One. 2012;7(3):e31801. doi: 10.1371/journal.pone.0031801. Epub 2012 Mar 1.


Environmental isolation and characterisation of Cryptococcus species from living trees in Havana city, Cuba.

Illnait-Zaragozí MT, Martínez-Machín GF, Fernández-Andreu CM, Perurena-Lancha MR, Theelen B, Boekhout T, Meis JF, Klaassen CH.

Mycoses. 2012 May;55(3):e138-44. doi: 10.1111/j.1439-0507.2012.02168.x. Epub 2012 Feb 27.


Species-specific antifungal susceptibility patterns of Scedosporium and Pseudallescheria species.

Lackner M, de Hoog GS, Verweij PE, Najafzadeh MJ, Curfs-Breuker I, Klaassen CH, Meis JF.

Antimicrob Agents Chemother. 2012 May;56(5):2635-42. doi: 10.1128/AAC.05910-11. Epub 2012 Jan 30.


Temperate climate niche for Cryptococcus gattii in Northern Europe.

Chowdhary A, Randhawa HS, Boekhout T, Hagen F, Klaassen CH, Meis JF.

Emerg Infect Dis. 2012 Jan;18(1):172-4. doi: 10.3201/eid1801.111190. No abstract available.


Outbreak of invasive aspergillosis after major heart surgery caused by spores in the air of the intensive care unit.

Peláez T, Muñoz P, Guinea J, Valerio M, Giannella M, Klaassen CH, Bouza E.

Clin Infect Dis. 2012 Feb 1;54(3):e24-31. doi: 10.1093/cid/cir771.


Genotypic diversity of Coxiella burnetii in the 2007-2010 Q fever outbreak episodes in The Netherlands.

Tilburg JJ, Rossen JW, van Hannen EJ, Melchers WJ, Hermans MH, van de Bovenkamp J, Roest HJ, de Bruin A, Nabuurs-Franssen MH, Horrevorts AM, Klaassen CH.

J Clin Microbiol. 2012 Mar;50(3):1076-8. doi: 10.1128/JCM.05497-11. Epub 2011 Dec 21.


High prevalence of azole-resistant Aspergillus fumigatus in adults with cystic fibrosis exposed to itraconazole.

Burgel PR, Baixench MT, Amsellem M, Audureau E, Chapron J, Kanaan R, Honoré I, Dupouy-Camet J, Dusser D, Klaassen CH, Meis JF, Hubert D, Paugam A.

Antimicrob Agents Chemother. 2012 Feb;56(2):869-74. doi: 10.1128/AAC.05077-11. Epub 2011 Nov 28.


Evidence for genetic differentiation and variable recombination rates among Dutch populations of the opportunistic human pathogen Aspergillus fumigatus.

Klaassen CH, Gibbons JG, Fedorova ND, Meis JF, Rokas A.

Mol Ecol. 2012 Jan;21(1):57-70. doi: 10.1111/j.1365-294X.2011.05364.x. Epub 2011 Nov 22.


Severe prosthetic joint infection in an immunocompetent male patient due to a therapy refractory Pseudallescheria apiosperma.

Lackner M, De Man FH, Eygendaal D, Wintermans RG, Kluytmans JA, Klaassen CH, Meis JF.

Mycoses. 2011 Oct;54 Suppl 3:22-7. doi: 10.1111/j.1439-0507.2011.02107.x.


Isolation of multiple-triazole-resistant Aspergillus fumigatus strains carrying the TR/L98H mutations in the cyp51A gene in India.

Chowdhary A, Kathuria S, Randhawa HS, Gaur SN, Klaassen CH, Meis JF.

J Antimicrob Chemother. 2012 Feb;67(2):362-6. doi: 10.1093/jac/dkr443. Epub 2011 Oct 25.


Infection and colonisation due to Scedosporium in Northern Spain. An in vitro antifungal susceptibility and molecular epidemiology study of 60 isolates.

Lackner M, Rezusta A, Villuendas MC, Palacian MP, Meis JF, Klaassen CH.

Mycoses. 2011 Oct;54 Suppl 3:12-21. doi: 10.1111/j.1439-0507.2011.02110.x.


Molecular identification tools for sibling species of Scedosporium and Pseudallescheria.

Lackner M, Klaassen CH, Meis JF, van den Ende AH, de Hoog GS.

Med Mycol. 2012 Jul;50(5):497-508. doi: 10.3109/13693786.2011.618939. Epub 2011 Oct 17.


Cladophialophora psammophila, a novel species of Chaetothyriales with a potential use in the bioremediation of volatile aromatic hydrocarbons.

Badali H, Prenafeta-Boldu FX, Guarro J, Klaassen CH, Meis JF, de Hoog GS.

Fungal Biol. 2011 Oct;115(10):1019-29. doi: 10.1016/j.funbio.2011.04.005. Epub 2011 May 20.


Molecular epidemiology of Aspergillus fumigatus: an in-depth genotypic analysis of isolates involved in an outbreak of invasive aspergillosis.

Guinea J, García de Viedma D, Peláez T, Escribano P, Muñoz P, Meis JF, Klaassen CH, Bouza E.

J Clin Microbiol. 2011 Oct;49(10):3498-503. doi: 10.1128/JCM.01159-11. Epub 2011 Aug 10.


Reactivation of a Cryptococcus gattii infection in a cheetah (Acinonyx jubatus) held in the National Zoo, Havana, Cuba.

Illnait-Zaragozí MT, Hagen F, Fernández-Andreu CM, Martínez-Machín GF, Polo-Leal JL, Boekhout T, Klaassen CH, Meis JF.

Mycoses. 2011 Nov;54(6):e889-92. doi: 10.1111/j.1439-0507.2011.02046.x. Epub 2011 Jun 12. No abstract available.


High-resolution amplified fragment length polymorphism typing of Lactococcus lactis strains enables identification of genetic markers for subspecies-related phenotypes.

Kütahya OE, Starrenburg MJ, Rademaker JL, Klaassen CH, van Hylckama Vlieg JE, Smid EJ, Kleerebezem M.

Appl Environ Microbiol. 2011 Aug;77(15):5192-8. doi: 10.1128/AEM.00518-11. Epub 2011 Jun 10.


Molecular epidemiology of Coxiella burnetii from ruminants in Q fever outbreak, the Netherlands.

Roest HI, Ruuls RC, Tilburg JJ, Nabuurs-Franssen MH, Klaassen CH, Vellema P, van den Brom R, Dercksen D, Wouda W, Spierenburg MA, van der Spek AN, Buijs R, de Boer AG, Willemsen PT, van Zijderveld FG.

Emerg Infect Dis. 2011 Apr;17(4):668-75. doi: 10.3201/eid1704.101562.

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